package com.demo.adapter;

/**
 * @Author likz
 * @Date 2025/7/24 11:29
 * @Description
 **/
public class Computer {

    public String readSD(SDCard sdCard) {
        if(sdCard == null) {
            throw new NullPointerException("sd card null");
        }
        return sdCard.readSD();
    }


}
